The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 05, 1998
Filed:
Dec. 15, 1995
Applicant:
Inventors:
Tadmor Shalon, Brentwood, MO (US);
John J Shea, Jr, Memphis, TN (US);
Assignee:
Metaphase Technology Access, Ltd., St. Louis, MO (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M / ;
U.S. Cl.
CPC ...
604246 ; 604247 ; 604207 ; 606108 ; 606109 ;
Abstract
A check valve for providing fluid communication between a patient's middle ear and external auditory canal for improved comfort and hearing. The check valve is configured for permitting fluid to flow from the external auditory canal into the middle ear and for checking fluid flow from the middle ear to the external auditory canal.